00603 2200217 4500008004100000001001900041005001900060035002100079040001200100041000800112043000900120082001700129084001700146100002600163245005400189260005000243300003100293440003900324650001000363850001200373280114||||||||| | ||| |||| || ||BHTDB280120140002820140128161248.463 0012-280114002860 aSBPKHAT aEng aa-io0 2[23]a500.69 a500.69 PAR t0 aParker, Bertha Morris00aThe science and his tools /cBertha Morris Parker aNew York :bRow, Peterson, and Company,c1960 a36 hlm. :bilus. ;c22 cm. 0aThe basic science education series 0aSains aSBPKHAT